10/4.. Ugly isnt always the issue in and of itself, the lack of penetration is what i was more referencing. Just remember to change your welder's settings when you move from sheet metal to the heavier gauge stuff.
Okay. Yes sir, I get what you are saying and appreciate the advice. I do recognize I'm a novice, but will ensure anything that my life and other's lives (anyone riding in the car with me) may depend on will be taken care of by an expert/professional.